Direction and distance locator.



W. H. DOLBY. DIRECTION AND DISTANCE LOUATOR. APPLICATION-FILED NOV.1,1907.

942,71 8. I Patented Dec. 7, 1909.

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. mo y WILLIAM H. DOLBY, OF NICHOLSVILLE, OHIO.

DIRECTION AND DISTANCE LOCATOB.

Application filed November 1, 1907.

T 0 all whom it may concern:

Be it known that I, \VILLIAM H. Donny, a citizen of the United States,residing at Nicholsville, in the county or Clermont anc State of Ohio,have invented new and useful Improvements in Direction and DistanceLocators, of which the following is a specification.

The invention relates to a distance and direction locator for maps,being particularly directed to an implement adapted for use withordinary maps or the like and serving as an aid in determining thedistance and direction of any given point to any desired point on themap.

The main object of the present invention is the production of animplement adapted primarily for use with maps or the like and serving topermit the user, in con unction with the scale of miles noted on the mapto readily determine the distance and direction of any desired pointfrom any given point.

The invention in its preferred form will be described in the followingspecification, reference being had particularly to the accompanyingdrawings, in which Figure l is a view in plan of the improved implement.Fig. 2 is a section on line 2-2 of Fig. 1. Fig. 3 is a plan of amodified form of implement. Fig. l is a section on line l4: 01 Fig. 8.

Referring to the drawings, and particularly to Figs. 1 and 2, wherein isshown the preferred toi'm ot' the implement, l designates an annularband, preferably constructed of a narrow strip of thin metal, terminallysecured to form the ring shown. series or wire threads 2 are secureddiametrically ot' the band, crossing at a central point at 5, as shown.The threads 2 may be in any desired number, and are preferably as thinas consistent with desired rigidity.

Referring to Figs. 3 and et, wherein is shown a slightly modified formof the invention, it will be noted that the implement comprises theannular band 4: and threads 5 similar to the band and threads in thepreferred form. In addition to these elements the modified form includesa second hand 6 through which the threads pass, and which is arrangedwithin and concentric with the band a. The modified form of implement isalso provided with a radially disposed l i l Patented Dec. '17, icon.

Serial No. 4=0Q,217.

handle 7 for convenience in the use of the implement.

1n use, it being assumed that the distance and direction from a givenpoint, as one city to another city is desired, the implement is laidupon the map with the central point 3 at one city and one of the threadsalways pointing north, one of the other threads 2 will be projected nearto or on the point on the map indicating the other city. There will thusbe provided a straight line between the particular cities which beingmeasured in accordance with the scales of miles indicated on the mapwill accurately indicate the distance in miles and also the directionbetween the particular cities. The band 1 is serviceable in providing anindicating line equidistant at all points from the central point, sothat the user may quickly determine the relative distances of any twocities from a particular city.

The form shown in Figs. 2 and 4: are used identically with that -formpreviously described, eXcept that the band 6 provides an additionalcircular indicating line.

It is, of course, to be understood that the implement may have anynumber of thread members and any desired number of concentricallydisposed bands, and that these bands may be relatively spaced for usewith particular maps, so that any distance may be provided betweencertain bands. Furthermore, the implement may be adapted forparticularly scaled maps by indicating on one or more of the spokes thescale of miles for that particular class ofmaps, or the respectivethread members may each have different scales, so that practically anydesired scale will be indicated on one of the threads.

The device will also be very useful in map drawing. Thus by placing thecenter of the indicator upon the center of the supposed map in suchmanner that the diametric threads indicate the cardinal and intermediate points of the compass, and using the scale of miles as determiningthe distance' any town or other object may be readily located at itsproper position both as to distance and direction. Roads, rivers,railroads, or the like may be similarly outlined in a simple,expeditious and correct manner.

Having thus fully described the invention, what is claimed as new is 1-An implement of the class described CO1I1- prising an annular bandarranged on edge and a series of threadlike members disposeddiametrically of and terminally secured to the band, said memberscrossing each other at the center of the band and forming a centralpoint from Which the respective members radiate in relatively oppositedirections, and a handle projecting radially from the hand, one of saidmembers extending beyond 10 the band and through the handle to securethe latter in place.

In testimony whereof I afiix my signature in presence of two Witnesses.

WILLIAM H. DOLBY. lVitnesses HUGH B. SHUT'rs, NINA M. DUNN.

